bar double rule flying shears
double bar
狭棒眼
重棒眼
重棒眼,双棒眼,超棒眼
双棒眼
超棒眼
复纵线
double-link flexible machine arm
Four-bar link bionic knee joint
“double-seat double-vote” system
ball mill with double-inlet and double outlet
cationic double-chamber double-layer float bed
COAL PULVERIZER WITH DOUBLE INLET AND DOUBLE OUTLET